| Official Name: | Williamsville, Delaware |
| Pushpin Map: | Delaware#USA |
| Pushpin Label: | Williamsville |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Delaware |
| Subdivision Type2: | County |
| Subdivision Name2: | Kent |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 49 |
| Coordinates: | 38.8956°N -75.51°W |
| Area Code: | 302 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 216252 |
Williamsville is an unincorporated community in Kent County, Delaware, United States. Williamsville is located at the intersection of Williamsville Road and Deep Grass Lane, south of Houston.
It was known as Guinea-Town, until an official name change in 1827.[1]
Williamsville was the site of the Williamsville Colored School (1920–1929).[2]
Griffith's Chapel was listed on the National Register of Historic Places in 1983.